CeO₂-Supported TiO₂-Pt Nanorod Composites as Efficient Catalysts for CO Oxidation.

ABSTRACT: Supported Pt-based catalysts have been identified as highly selective catalysts for CO oxidation, but their potential for applications has been hampered by the high cost and scarcity of Pt metals as well as aggregation problems at relatively high temperatures. In this work, nanorod structured (TiO₂-Pt)/CeO₂ catalysts with the addition of 0.3 at% Pt and different atomic ratios of Ti were prepared through a combined dealloying and calcination method. XRD, XPS, SEM, TEM, and STEM measurements were used to confirm the phase composition, surface morphology, and structure of synthesized samples. After calcination treatment, Pt nanoparticles were semi-inlayed on the surface of the CeO₂ nanorod, and TiO₂ was highly dispersed into the catalyst system, res

SUBMITTER: Wang H 

PROVIDER: S-EPMC9959209 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature